I am trying to execute a hello world program using cyclone 2 fpga. In run configurations, after clicking on refresh connections, an error "No Nios II target connection paths were located. Check connections and that a Nios II .sof is downloaded." appears.
I have successfully downloaded .sof file onto the fpga but right after that when i click on refresh connections, no connections are shown.
I didn't find the right solution from the internet.